Originally Posted by
ericoides
Why on earth not? It's self-evident to all but the plane-crazy that aeroplanes make an unpleasant noise and mess up the sky with their exhausts. Take a walk in the "World Heritage Site" that is the British Lake District one day. You go for peace, quiet and tremendous views, and return having experienced the continuous daily racket of the Manchester to Glasgow, Paris to New York etc etc flights and the azure sky criss-crossed with numerous trails. Not ideal, although doubtless the people off on their jollies abroad will have a great time, perhaps in turn having their own peace and quiet ruined by the thunder overhead. And so it goes, man handing on misery to man. Planes may have ther good points too, but the noise and the sky-graffiti should be, and in the case of the noise, are being, addressed.
Your objection about the aesthetics of contrails brings to mind the obvious eventual result of "carbon free" electricity production using wind turbines, solar farms, and battery storage.
The physical installations needed to provide replacement for power that is now produced with fossil fuels will eventually cover practically every ridgeline, prairie, and desert on earth. The adoption of nuclear powered generation would provide an alternative whose footprint would compare favorably with current fossil fueled powerplants, but that is, of course, out of the question.
It appears that so far this has not occurred to the proponents of green energy production.